Modular shelving unit



FIG. 1 is a front view of a modular shelving unit showing my new design;

FIG. 2 is a left side view of the modular shelving unit shown in FIG. 1;

FIG. 3 is a right side view of the modular shelving unit shown in FIG. 1;

FIG. 4 is a perspective right front view of the modular shelving unit shown in FIG. 1;

FIG. 5 is a perspective left front view of the modular shelving unit shown in FIG. 1; and,

FIG. 6 is a top view of the modular shelving unit shown in FIG. 1.

The bottom and rear of the modular shelving unit forms no part of the claimed design. 

CLAIM The ornamental design for a modular shelving unit, as shown and described. 